1 | <?php |
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2 | |
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3 | if (!defined('ENT_SUBSTITUTE')) { |
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4 | define('ENT_SUBSTITUTE', 8); |
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5 | } |
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6 | |
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7 | /* |
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8 | * This file is part of Twig. |
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9 | * |
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10 | * (c) 2009 Fabien Potencier |
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11 | * |
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12 | * For the full copyright and license information, please view the LICENSE |
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13 | * file that was distributed with this source code. |
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14 | */ |
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15 | class Twig_Extension_Core extends Twig_Extension |
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16 | { |
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17 | protected $dateFormats = array('F j, Y H:i', '%d days'); |
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18 | protected $numberFormat = array(0, '.', ','); |
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19 | protected $timezone = null; |
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20 | |
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21 | /** |
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22 | * Sets the default format to be used by the date filter. |
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23 | * |
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24 | * @param string $format The default date format string |
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25 | * @param string $dateIntervalFormat The default date interval format string |
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26 | */ |
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27 | public function setDateFormat($format = null, $dateIntervalFormat = null) |
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28 | { |
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29 | if (null !== $format) { |
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30 | $this->dateFormats[0] = $format; |
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31 | } |
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32 | |
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33 | if (null !== $dateIntervalFormat) { |
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34 | $this->dateFormats[1] = $dateIntervalFormat; |
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35 | } |
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36 | } |
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37 | |
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38 | /** |
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39 | * Gets the default format to be used by the date filter. |
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40 | * |
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41 | * @return array The default date format string and the default date interval format string |
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42 | */ |
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43 | public function getDateFormat() |
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44 | { |
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45 | return $this->dateFormats; |
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46 | } |
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47 | |
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48 | /** |
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49 | * Sets the default timezone to be used by the date filter. |
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50 | * |
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51 | * @param DateTimeZone|string $timezone The default timezone string or a DateTimeZone object |
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52 | */ |
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53 | public function setTimezone($timezone) |
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54 | { |
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55 | $this->timezone = $timezone instanceof DateTimeZone ? $timezone : new DateTimeZone($timezone); |
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56 | } |
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57 | |
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58 | /** |
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59 | * Gets the default timezone to be used by the date filter. |
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60 | * |
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61 | * @return DateTimeZone The default timezone currently in use |
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62 | */ |
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63 | public function getTimezone() |
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64 | { |
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65 | if (null === $this->timezone) { |
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66 | $this->timezone = new DateTimeZone(date_default_timezone_get()); |
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67 | } |
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68 | |
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69 | return $this->timezone; |
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70 | } |
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71 | |
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72 | /** |
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73 | * Sets the default format to be used by the number_format filter. |
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74 | * |
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75 | * @param integer $decimal The number of decimal places to use. |
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76 | * @param string $decimalPoint The character(s) to use for the decimal point. |
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77 | * @param string $thousandSep The character(s) to use for the thousands separator. |
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78 | */ |
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79 | public function setNumberFormat($decimal, $decimalPoint, $thousandSep) |
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80 | { |
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81 | $this->numberFormat = array($decimal, $decimalPoint, $thousandSep); |
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82 | } |
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83 | |
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84 | /** |
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85 | * Get the default format used by the number_format filter. |
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86 | * |
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87 | * @return array The arguments for number_format() |
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88 | */ |
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89 | public function getNumberFormat() |
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90 | { |
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91 | return $this->numberFormat; |
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92 | } |
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93 | |
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94 | /** |
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95 | * Returns the token parser instance to add to the existing list. |
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96 | * |
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97 | * @return array An array of Twig_TokenParser instances |
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98 | */ |
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99 | public function getTokenParsers() |
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100 | { |
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101 | return array( |
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102 | new Twig_TokenParser_For(), |
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103 | new Twig_TokenParser_If(), |
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104 | new Twig_TokenParser_Extends(), |
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105 | new Twig_TokenParser_Include(), |
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106 | new Twig_TokenParser_Block(), |
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107 | new Twig_TokenParser_Use(), |
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108 | new Twig_TokenParser_Filter(), |
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109 | new Twig_TokenParser_Macro(), |
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110 | new Twig_TokenParser_Import(), |
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111 | new Twig_TokenParser_From(), |
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112 | new Twig_TokenParser_Set(), |
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113 | new Twig_TokenParser_Spaceless(), |
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114 | new Twig_TokenParser_Flush(), |
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115 | new Twig_TokenParser_Do(), |
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116 | new Twig_TokenParser_Embed(), |
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117 | ); |
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118 | } |
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119 | |
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120 | /** |
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121 | * Returns a list of filters to add to the existing list. |
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122 | * |
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123 | * @return array An array of filters |
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124 | */ |
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125 | public function getFilters() |
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126 | { |
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127 | $filters = array( |
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128 | // formatting filters |
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129 | 'date' => new Twig_Filter_Function('twig_date_format_filter', array('needs_environment' => true)), |
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130 | 'date_modify' => new Twig_Filter_Function('twig_date_modify_filter', array('needs_environment' => true)), |
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131 | 'format' => new Twig_Filter_Function('sprintf'), |
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132 | 'replace' => new Twig_Filter_Function('strtr'), |
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133 | 'number_format' => new Twig_Filter_Function('twig_number_format_filter', array('needs_environment' => true)), |
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134 | 'abs' => new Twig_Filter_Function('abs'), |
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135 | |
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136 | // encoding |
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137 | 'url_encode' => new Twig_Filter_Function('twig_urlencode_filter'), |
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138 | 'json_encode' => new Twig_Filter_Function('twig_jsonencode_filter'), |
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139 | 'convert_encoding' => new Twig_Filter_Function('twig_convert_encoding'), |
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140 | |
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141 | // string filters |
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142 | 'title' => new Twig_Filter_Function('twig_title_string_filter', array('needs_environment' => true)), |
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143 | 'capitalize' => new Twig_Filter_Function('twig_capitalize_string_filter', array('needs_environment' => true)), |
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144 | 'upper' => new Twig_Filter_Function('strtoupper'), |
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145 | 'lower' => new Twig_Filter_Function('strtolower'), |
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146 | 'striptags' => new Twig_Filter_Function('strip_tags'), |
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147 | 'trim' => new Twig_Filter_Function('trim'), |
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148 | 'nl2br' => new Twig_Filter_Function('nl2br', array('pre_escape' => 'html', 'is_safe' => array('html'))), |
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149 | |
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150 | // array helpers |
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151 | 'join' => new Twig_Filter_Function('twig_join_filter'), |
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152 | 'split' => new Twig_Filter_Function('twig_split_filter'), |
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153 | 'sort' => new Twig_Filter_Function('twig_sort_filter'), |
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154 | 'merge' => new Twig_Filter_Function('twig_array_merge'), |
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155 | |
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156 | // string/array filters |
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157 | 'reverse' => new Twig_Filter_Function('twig_reverse_filter', array('needs_environment' => true)), |
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158 | 'length' => new Twig_Filter_Function('twig_length_filter', array('needs_environment' => true)), |
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159 | 'slice' => new Twig_Filter_Function('twig_slice', array('needs_environment' => true)), |
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160 | |
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161 | // iteration and runtime |
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162 | 'default' => new Twig_Filter_Node('Twig_Node_Expression_Filter_Default'), |
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163 | '_default' => new Twig_Filter_Function('_twig_default_filter'), |
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164 | |
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165 | 'keys' => new Twig_Filter_Function('twig_get_array_keys_filter'), |
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166 | |
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167 | // escaping |
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168 | 'escape' => new Twig_Filter_Function('twig_escape_filter', array('needs_environment' => true, 'is_safe_callback' => 'twig_escape_filter_is_safe')), |
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169 | 'e' => new Twig_Filter_Function('twig_escape_filter', array('needs_environment' => true, 'is_safe_callback' => 'twig_escape_filter_is_safe')), |
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170 | ); |
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171 | |
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172 | if (function_exists('mb_get_info')) { |
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173 | $filters['upper'] = new Twig_Filter_Function('twig_upper_filter', array('needs_environment' => true)); |
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174 | $filters['lower'] = new Twig_Filter_Function('twig_lower_filter', array('needs_environment' => true)); |
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175 | } |
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176 | |
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177 | return $filters; |
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178 | } |
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179 | |
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180 | /** |
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181 | * Returns a list of global functions to add to the existing list. |
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182 | * |
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183 | * @return array An array of global functions |
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184 | */ |
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185 | public function getFunctions() |
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186 | { |
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187 | return array( |
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188 | 'range' => new Twig_Function_Function('range'), |
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189 | 'constant' => new Twig_Function_Function('constant'), |
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190 | 'cycle' => new Twig_Function_Function('twig_cycle'), |
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191 | 'random' => new Twig_Function_Function('twig_random', array('needs_environment' => true)), |
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192 | 'date' => new Twig_Function_Function('twig_date_converter', array('needs_environment' => true)), |
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193 | ); |
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194 | } |
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195 | |
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196 | /** |
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197 | * Returns a list of tests to add to the existing list. |
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198 | * |
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199 | * @return array An array of tests |
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200 | */ |
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201 | public function getTests() |
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202 | { |
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203 | return array( |
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204 | 'even' => new Twig_Test_Node('Twig_Node_Expression_Test_Even'), |
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205 | 'odd' => new Twig_Test_Node('Twig_Node_Expression_Test_Odd'), |
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206 | 'defined' => new Twig_Test_Node('Twig_Node_Expression_Test_Defined'), |
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207 | 'sameas' => new Twig_Test_Node('Twig_Node_Expression_Test_Sameas'), |
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208 | 'none' => new Twig_Test_Node('Twig_Node_Expression_Test_Null'), |
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209 | 'null' => new Twig_Test_Node('Twig_Node_Expression_Test_Null'), |
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210 | 'divisibleby' => new Twig_Test_Node('Twig_Node_Expression_Test_Divisibleby'), |
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211 | 'constant' => new Twig_Test_Node('Twig_Node_Expression_Test_Constant'), |
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212 | 'empty' => new Twig_Test_Function('twig_test_empty'), |
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213 | 'iterable' => new Twig_Test_Function('twig_test_iterable'), |
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214 | ); |
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215 | } |
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216 | |
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217 | /** |
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218 | * Returns a list of operators to add to the existing list. |
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219 | * |
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220 | * @return array An array of operators |
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221 | */ |
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222 | public function getOperators() |
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223 | { |
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224 | return array( |
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225 | array( |
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226 | 'not' => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Not'), |
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227 | '-' => array('precedence' => 500, 'class' => 'Twig_Node_Expression_Unary_Neg'), |
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228 | '+' => array('precedence' => 500, 'class' => 'Twig_Node_Expression_Unary_Pos'), |
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229 | ), |
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230 | array( |
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231 | 'or' => array('precedence' => 10, 'class' => 'Twig_Node_Expression_Binary_Or', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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232 | 'and' => array('precedence' => 15, 'class' => 'Twig_Node_Expression_Binary_And', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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233 | 'b-or' => array('precedence' => 16, 'class' => 'Twig_Node_Expression_Binary_BitwiseOr', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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234 | 'b-xor' => array('precedence' => 17, 'class' => 'Twig_Node_Expression_Binary_BitwiseXor', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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235 | 'b-and' => array('precedence' => 18, 'class' => 'Twig_Node_Expression_Binary_BitwiseAnd', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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236 | '==' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Equal', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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237 | '!=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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238 | '<' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Less', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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239 | '>' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Greater', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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240 | '>=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_GreaterEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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241 | '<=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_LessEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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242 | 'not in' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotIn', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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243 | 'in' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_In', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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244 | '..' => array('precedence' => 25, 'class' => 'Twig_Node_Expression_Binary_Range', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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245 | '+' => array('precedence' => 30, 'class' => 'Twig_Node_Expression_Binary_Add', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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246 | '-' => array('precedence' => 30, 'class' => 'Twig_Node_Expression_Binary_Sub', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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247 | '~' => array('precedence' => 40, 'class' => 'Twig_Node_Expression_Binary_Concat', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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248 | '*' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Mul', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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249 | '/' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Div', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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250 | '//' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_FloorDiv', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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251 | '%' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Mod', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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252 | 'is' => array('precedence' => 100, 'callable' => array($this, 'parseTestExpression'), 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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253 | 'is not' => array('precedence' => 100, 'callable' => array($this, 'parseNotTestExpression'), 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), |
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254 | '**' => array('precedence' => 200, 'class' => 'Twig_Node_Expression_Binary_Power', 'associativity' => Twig_ExpressionParser::OPERATOR_RIGHT), |
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255 | ), |
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256 | ); |
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257 | } |
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258 | |
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259 | public function parseNotTestExpression(Twig_Parser $parser, $node) |
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260 | { |
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261 | return new Twig_Node_Expression_Unary_Not($this->parseTestExpression($parser, $node), $parser->getCurrentToken()->getLine()); |
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262 | } |
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263 | |
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264 | public function parseTestExpression(Twig_Parser $parser, $node) |
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265 | { |
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266 | $stream = $parser->getStream(); |
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267 | $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue(); |
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268 | $arguments = null; |
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269 | if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) { |
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270 | $arguments = $parser->getExpressionParser()->parseArguments(); |
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271 | } |
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272 | |
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273 | $class = $this->getTestNodeClass($parser->getEnvironment(), $name); |
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274 | |
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275 | return new $class($node, $name, $arguments, $parser->getCurrentToken()->getLine()); |
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276 | } |
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277 | |
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278 | protected function getTestNodeClass(Twig_Environment $env, $name) |
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279 | { |
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280 | $testMap = $env->getTests(); |
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281 | if (isset($testMap[$name]) && $testMap[$name] instanceof Twig_Test_Node) { |
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282 | return $testMap[$name]->getClass(); |
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283 | } |
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284 | |
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285 | return 'Twig_Node_Expression_Test'; |
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286 | } |
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287 | |
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288 | /** |
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289 | * Returns the name of the extension. |
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290 | * |
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291 | * @return string The extension name |
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292 | */ |
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293 | public function getName() |
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294 | { |
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295 | return 'core'; |
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296 | } |
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297 | } |
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298 | |
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299 | /** |
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300 | * Cycles over a value. |
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301 | * |
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302 | * @param ArrayAccess|array $values An array or an ArrayAccess instance |
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303 | * @param integer $i The cycle value |
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304 | * |
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305 | * @return string The next value in the cycle |
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306 | */ |
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307 | function twig_cycle($values, $i) |
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308 | { |
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309 | if (!is_array($values) && !$values instanceof ArrayAccess) { |
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310 | return $values; |
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311 | } |
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312 | |
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313 | return $values[$i % count($values)]; |
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314 | } |
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315 | |
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316 | /** |
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317 | * Returns a random value depending on the supplied parameter type: |
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318 | * - a random item from a Traversable or array |
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319 | * - a random character from a string |
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320 | * - a random integer between 0 and the integer parameter |
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321 | * |
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322 | * @param Twig_Environment $env A Twig_Environment instance |
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323 | * @param Traversable|array|integer|string $values The values to pick a random item from |
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324 | * |
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325 | * @throws Twig_Error_Runtime When $values is an empty array (does not apply to an empty string which is returned as is). |
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326 | * |
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327 | * @return mixed A random value from the given sequence |
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328 | */ |
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329 | function twig_random(Twig_Environment $env, $values = null) |
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330 | { |
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331 | if (null === $values) { |
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332 | return mt_rand(); |
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333 | } |
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334 | |
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335 | if (is_int($values) || is_float($values)) { |
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336 | return $values < 0 ? mt_rand($values, 0) : mt_rand(0, $values); |
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337 | } |
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338 | |
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339 | if ($values instanceof Traversable) { |
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340 | $values = iterator_to_array($values); |
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341 | } elseif (is_string($values)) { |
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342 | if ('' === $values) { |
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343 | return ''; |
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344 | } |
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345 | if (null !== $charset = $env->getCharset()) { |
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346 | if ('UTF-8' != $charset) { |
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347 | $values = twig_convert_encoding($values, 'UTF-8', $charset); |
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348 | } |
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349 | |
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350 | // unicode version of str_split() |
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351 | // split at all positions, but not after the start and not before the end |
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352 | $values = preg_split('/(?<!^)(?!$)/u', $values); |
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353 | |
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354 | if ('UTF-8' != $charset) { |
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355 | foreach ($values as $i => $value) { |
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356 | $values[$i] = twig_convert_encoding($value, $charset, 'UTF-8'); |
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357 | } |
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358 | } |
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359 | } else { |
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360 | return $values[mt_rand(0, strlen($values) - 1)]; |
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361 | } |
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362 | } |
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363 | |
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364 | if (!is_array($values)) { |
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365 | return $values; |
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366 | } |
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367 | |
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368 | if (0 === count($values)) { |
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369 | throw new Twig_Error_Runtime('The random function cannot pick from an empty array.'); |
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370 | } |
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371 | |
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372 | return $values[array_rand($values, 1)]; |
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373 | } |
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374 | |
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375 | /** |
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376 | * Converts a date to the given format. |
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377 | * |
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378 | * <pre> |
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379 | * {{ post.published_at|date("m/d/Y") }} |
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380 | * </pre> |
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381 | * |
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382 | * @param Twig_Environment $env A Twig_Environment instance |
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383 | * @param DateTime|DateInterval|string $date A date |
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384 | * @param string $format A format |
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385 | * @param DateTimeZone|string $timezone A timezone |
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386 | * |
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387 | * @return string The formatted date |
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388 | */ |
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389 | function twig_date_format_filter(Twig_Environment $env, $date, $format = null, $timezone = null) |
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390 | { |
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391 | if (null === $format) { |
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392 | $formats = $env->getExtension('core')->getDateFormat(); |
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393 | $format = $date instanceof DateInterval ? $formats[1] : $formats[0]; |
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394 | } |
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395 | |
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396 | if ($date instanceof DateInterval) { |
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397 | return $date->format($format); |
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398 | } |
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399 | |
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400 | return twig_date_converter($env, $date, $timezone)->format($format); |
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401 | } |
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402 | |
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403 | /** |
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404 | * Returns a new date object modified |
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405 | * |
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406 | * <pre> |
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407 | * {{ post.published_at|modify("-1day")|date("m/d/Y") }} |
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408 | * </pre> |
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409 | * |
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410 | * @param Twig_Environment $env A Twig_Environment instance |
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411 | * @param DateTime|string $date A date |
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412 | * @param string $modifier A modifier string |
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413 | * |
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414 | * @return DateTime A new date object |
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415 | */ |
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416 | function twig_date_modify_filter(Twig_Environment $env, $date, $modifier) |
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417 | { |
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418 | $date = twig_date_converter($env, $date, false); |
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419 | $date->modify($modifier); |
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420 | |
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421 | return $date; |
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422 | } |
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423 | |
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424 | /** |
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425 | * Converts an input to a DateTime instance. |
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426 | * |
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427 | * <pre> |
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428 | * {% if date(user.created_at) < date('+2days') %} |
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429 | * {# do something #} |
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430 | * {% endif %} |
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431 | * </pre> |
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432 | * |
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433 | * @param Twig_Environment $env A Twig_Environment instance |
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434 | * @param DateTime|string $date A date |
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435 | * @param DateTimeZone|string $timezone A timezone |
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436 | * |
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437 | * @return DateTime A DateTime instance |
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438 | */ |
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439 | function twig_date_converter(Twig_Environment $env, $date = null, $timezone = null) |
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440 | { |
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441 | // determine the timezone |
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442 | if (!$timezone) { |
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443 | $defaultTimezone = $env->getExtension('core')->getTimezone(); |
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444 | } elseif (!$timezone instanceof DateTimeZone) { |
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445 | $defaultTimezone = new DateTimeZone($timezone); |
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446 | } else { |
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447 | $defaultTimezone = $timezone; |
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448 | } |
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449 | |
---|
450 | if ($date instanceof DateTime) { |
---|
451 | $date = clone $date; |
---|
452 | if (false !== $timezone) { |
---|
453 | $date->setTimezone($defaultTimezone); |
---|
454 | } |
---|
455 | |
---|
456 | return $date; |
---|
457 | } |
---|
458 | |
---|
459 | $asString = (string) $date; |
---|
460 | if (ctype_digit($asString) || (!empty($asString) && '-' === $asString[0] && ctype_digit(substr($asString, 1)))) { |
---|
461 | $date = new DateTime('@'.$date); |
---|
462 | $date->setTimezone($defaultTimezone); |
---|
463 | |
---|
464 | return $date; |
---|
465 | } |
---|
466 | |
---|
467 | return new DateTime($date, $defaultTimezone); |
---|
468 | } |
---|
469 | |
---|
470 | /** |
---|
471 | * Number format filter. |
---|
472 | * |
---|
473 | * All of the formatting options can be left null, in that case the defaults will |
---|
474 | * be used. Supplying any of the parameters will override the defaults set in the |
---|
475 | * environment object. |
---|
476 | * |
---|
477 | * @param Twig_Environment $env A Twig_Environment instance |
---|
478 | * @param mixed $number A float/int/string of the number to format |
---|
479 | * @param integer $decimal The number of decimal points to display. |
---|
480 | * @param string $decimalPoint The character(s) to use for the decimal point. |
---|
481 | * @param string $thousandSep The character(s) to use for the thousands separator. |
---|
482 | * |
---|
483 | * @return string The formatted number |
---|
484 | */ |
---|
485 | function twig_number_format_filter(Twig_Environment $env, $number, $decimal = null, $decimalPoint = null, $thousandSep = null) |
---|
486 | { |
---|
487 | $defaults = $env->getExtension('core')->getNumberFormat(); |
---|
488 | if (null === $decimal) { |
---|
489 | $decimal = $defaults[0]; |
---|
490 | } |
---|
491 | |
---|
492 | if (null === $decimalPoint) { |
---|
493 | $decimalPoint = $defaults[1]; |
---|
494 | } |
---|
495 | |
---|
496 | if (null === $thousandSep) { |
---|
497 | $thousandSep = $defaults[2]; |
---|
498 | } |
---|
499 | |
---|
500 | return number_format((float) $number, $decimal, $decimalPoint, $thousandSep); |
---|
501 | } |
---|
502 | |
---|
503 | /** |
---|
504 | * URL encodes a string. |
---|
505 | * |
---|
506 | * @param string $url A URL |
---|
507 | * @param bool $raw true to use rawurlencode() instead of urlencode |
---|
508 | * |
---|
509 | * @return string The URL encoded value |
---|
510 | */ |
---|
511 | function twig_urlencode_filter($url, $raw = false) |
---|
512 | { |
---|
513 | if ($raw) { |
---|
514 | return rawurlencode($url); |
---|
515 | } |
---|
516 | |
---|
517 | return urlencode($url); |
---|
518 | } |
---|
519 | |
---|
520 | if (version_compare(PHP_VERSION, '5.3.0', '<')) { |
---|
521 | /** |
---|
522 | * JSON encodes a variable. |
---|
523 | * |
---|
524 | * @param mixed $value The value to encode. |
---|
525 | * @param integer $options Not used on PHP 5.2.x |
---|
526 | * |
---|
527 | * @return mixed The JSON encoded value |
---|
528 | */ |
---|
529 | function twig_jsonencode_filter($value, $options = 0) |
---|
530 | { |
---|
531 | if ($value instanceof Twig_Markup) { |
---|
532 | $value = (string) $value; |
---|
533 | } elseif (is_array($value)) { |
---|
534 | array_walk_recursive($value, '_twig_markup2string'); |
---|
535 | } |
---|
536 | |
---|
537 | return json_encode($value); |
---|
538 | } |
---|
539 | } else { |
---|
540 | /** |
---|
541 | * JSON encodes a variable. |
---|
542 | * |
---|
543 | * @param mixed $value The value to encode. |
---|
544 | * @param integer $options Bitmask consisting of JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_NUMERIC_CHECK, JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES, JSON_FORCE_OBJECT |
---|
545 | * |
---|
546 | * @return mixed The JSON encoded value |
---|
547 | */ |
---|
548 | function twig_jsonencode_filter($value, $options = 0) |
---|
549 | { |
---|
550 | if ($value instanceof Twig_Markup) { |
---|
551 | $value = (string) $value; |
---|
552 | } elseif (is_array($value)) { |
---|
553 | array_walk_recursive($value, '_twig_markup2string'); |
---|
554 | } |
---|
555 | |
---|
556 | return json_encode($value, $options); |
---|
557 | } |
---|
558 | } |
---|
559 | |
---|
560 | function _twig_markup2string(&$value) |
---|
561 | { |
---|
562 | if ($value instanceof Twig_Markup) { |
---|
563 | $value = (string) $value; |
---|
564 | } |
---|
565 | } |
---|
566 | |
---|
567 | /** |
---|
568 | * Merges an array with another one. |
---|
569 | * |
---|
570 | * <pre> |
---|
571 | * {% set items = { 'apple': 'fruit', 'orange': 'fruit' } %} |
---|
572 | * |
---|
573 | * {% set items = items|merge({ 'peugeot': 'car' }) %} |
---|
574 | * |
---|
575 | * {# items now contains { 'apple': 'fruit', 'orange': 'fruit', 'peugeot': 'car' } #} |
---|
576 | * </pre> |
---|
577 | * |
---|
578 | * @param array $arr1 An array |
---|
579 | * @param array $arr2 An array |
---|
580 | * |
---|
581 | * @return array The merged array |
---|
582 | */ |
---|
583 | function twig_array_merge($arr1, $arr2) |
---|
584 | { |
---|
585 | if (!is_array($arr1) || !is_array($arr2)) { |
---|
586 | throw new Twig_Error_Runtime('The merge filter only works with arrays or hashes.'); |
---|
587 | } |
---|
588 | |
---|
589 | return array_merge($arr1, $arr2); |
---|
590 | } |
---|
591 | |
---|
592 | /** |
---|
593 | * Slices a variable. |
---|
594 | * |
---|
595 | * @param Twig_Environment $env A Twig_Environment instance |
---|
596 | * @param mixed $item A variable |
---|
597 | * @param integer $start Start of the slice |
---|
598 | * @param integer $length Size of the slice |
---|
599 | * @param Boolean $preserveKeys Whether to preserve key or not (when the input is an array) |
---|
600 | * |
---|
601 | * @return mixed The sliced variable |
---|
602 | */ |
---|
603 | function twig_slice(Twig_Environment $env, $item, $start, $length = null, $preserveKeys = false) |
---|
604 | { |
---|
605 | if ($item instanceof Traversable) { |
---|
606 | $item = iterator_to_array($item, false); |
---|
607 | } |
---|
608 | |
---|
609 | if (is_array($item)) { |
---|
610 | return array_slice($item, $start, $length, $preserveKeys); |
---|
611 | } |
---|
612 | |
---|
613 | $item = (string) $item; |
---|
614 | |
---|
615 | if (function_exists('mb_get_info') && null !== $charset = $env->getCharset()) { |
---|
616 | return mb_substr($item, $start, null === $length ? mb_strlen($item, $charset) - $start : $length, $charset); |
---|
617 | } |
---|
618 | |
---|
619 | return null === $length ? substr($item, $start) : substr($item, $start, $length); |
---|
620 | } |
---|
621 | |
---|
622 | /** |
---|
623 | * Joins the values to a string. |
---|
624 | * |
---|
625 | * The separator between elements is an empty string per default, you can define it with the optional parameter. |
---|
626 | * |
---|
627 | * <pre> |
---|
628 | * {{ [1, 2, 3]|join('|') }} |
---|
629 | * {# returns 1|2|3 #} |
---|
630 | * |
---|
631 | * {{ [1, 2, 3]|join }} |
---|
632 | * {# returns 123 #} |
---|
633 | * </pre> |
---|
634 | * |
---|
635 | * @param array $value An array |
---|
636 | * @param string $glue The separator |
---|
637 | * |
---|
638 | * @return string The concatenated string |
---|
639 | */ |
---|
640 | function twig_join_filter($value, $glue = '') |
---|
641 | { |
---|
642 | if ($value instanceof Traversable) { |
---|
643 | $value = iterator_to_array($value, false); |
---|
644 | } |
---|
645 | |
---|
646 | return implode($glue, (array) $value); |
---|
647 | } |
---|
648 | |
---|
649 | /** |
---|
650 | * Splits the string into an array. |
---|
651 | * |
---|
652 | * <pre> |
---|
653 | * {{ "one,two,three"|split(',') }} |
---|
654 | * {# returns [one, two, three] #} |
---|
655 | * |
---|
656 | * {{ "one,two,three,four,five"|split(',', 3) }} |
---|
657 | * {# returns [one, two, "three,four,five"] #} |
---|
658 | * |
---|
659 | * {{ "123"|split('') }} |
---|
660 | * {# returns [1, 2, 3] #} |
---|
661 | * |
---|
662 | * {{ "aabbcc"|split('', 2) }} |
---|
663 | * {# returns [aa, bb, cc] #} |
---|
664 | * </pre> |
---|
665 | * |
---|
666 | * @param string $value A string |
---|
667 | * @param string $delimiter The delimiter |
---|
668 | * @param integer $limit The limit |
---|
669 | * |
---|
670 | * @return array The split string as an array |
---|
671 | */ |
---|
672 | function twig_split_filter($value, $delimiter, $limit = null) |
---|
673 | { |
---|
674 | if (empty($delimiter)) { |
---|
675 | return str_split($value, null === $limit ? 1 : $limit); |
---|
676 | } |
---|
677 | |
---|
678 | return null === $limit ? explode($delimiter, $value) : explode($delimiter, $value, $limit); |
---|
679 | } |
---|
680 | |
---|
681 | // The '_default' filter is used internally to avoid using the ternary operator |
---|
682 | // which costs a lot for big contexts (before PHP 5.4). So, on average, |
---|
683 | // a function call is cheaper. |
---|
684 | function _twig_default_filter($value, $default = '') |
---|
685 | { |
---|
686 | if (twig_test_empty($value)) { |
---|
687 | return $default; |
---|
688 | } |
---|
689 | |
---|
690 | return $value; |
---|
691 | } |
---|
692 | |
---|
693 | /** |
---|
694 | * Returns the keys for the given array. |
---|
695 | * |
---|
696 | * It is useful when you want to iterate over the keys of an array: |
---|
697 | * |
---|
698 | * <pre> |
---|
699 | * {% for key in array|keys %} |
---|
700 | * {# ... #} |
---|
701 | * {% endfor %} |
---|
702 | * </pre> |
---|
703 | * |
---|
704 | * @param array $array An array |
---|
705 | * |
---|
706 | * @return array The keys |
---|
707 | */ |
---|
708 | function twig_get_array_keys_filter($array) |
---|
709 | { |
---|
710 | if (is_object($array) && $array instanceof Traversable) { |
---|
711 | return array_keys(iterator_to_array($array)); |
---|
712 | } |
---|
713 | |
---|
714 | if (!is_array($array)) { |
---|
715 | return array(); |
---|
716 | } |
---|
717 | |
---|
718 | return array_keys($array); |
---|
719 | } |
---|
720 | |
---|
721 | /** |
---|
722 | * Reverses a variable. |
---|
723 | * |
---|
724 | * @param Twig_Environment $env A Twig_Environment instance |
---|
725 | * @param array|Traversable|string $item An array, a Traversable instance, or a string |
---|
726 | * @param Boolean $preserveKeys Whether to preserve key or not |
---|
727 | * |
---|
728 | * @return mixed The reversed input |
---|
729 | */ |
---|
730 | function twig_reverse_filter(Twig_Environment $env, $item, $preserveKeys = false) |
---|
731 | { |
---|
732 | if (is_object($item) && $item instanceof Traversable) { |
---|
733 | return array_reverse(iterator_to_array($item), $preserveKeys); |
---|
734 | } |
---|
735 | |
---|
736 | if (is_array($item)) { |
---|
737 | return array_reverse($item, $preserveKeys); |
---|
738 | } |
---|
739 | |
---|
740 | if (null !== $charset = $env->getCharset()) { |
---|
741 | $string = (string) $item; |
---|
742 | |
---|
743 | if ('UTF-8' != $charset) { |
---|
744 | $item = twig_convert_encoding($string, 'UTF-8', $charset); |
---|
745 | } |
---|
746 | |
---|
747 | preg_match_all('/./us', $item, $matches); |
---|
748 | |
---|
749 | $string = implode('', array_reverse($matches[0])); |
---|
750 | |
---|
751 | if ('UTF-8' != $charset) { |
---|
752 | $string = twig_convert_encoding($string, $charset, 'UTF-8'); |
---|
753 | } |
---|
754 | |
---|
755 | return $string; |
---|
756 | } |
---|
757 | |
---|
758 | return strrev((string) $item); |
---|
759 | } |
---|
760 | |
---|
761 | /** |
---|
762 | * Sorts an array. |
---|
763 | * |
---|
764 | * @param array $array An array |
---|
765 | */ |
---|
766 | function twig_sort_filter($array) |
---|
767 | { |
---|
768 | asort($array); |
---|
769 | |
---|
770 | return $array; |
---|
771 | } |
---|
772 | |
---|
773 | /* used internally */ |
---|
774 | function twig_in_filter($value, $compare) |
---|
775 | { |
---|
776 | $strict = is_object($value); |
---|
777 | |
---|
778 | if (is_array($compare)) { |
---|
779 | return in_array($value, $compare, $strict); |
---|
780 | } elseif (is_string($compare)) { |
---|
781 | if (!strlen((string) $value)) { |
---|
782 | return empty($compare); |
---|
783 | } |
---|
784 | |
---|
785 | return false !== strpos($compare, (string) $value); |
---|
786 | } elseif (is_object($compare) && $compare instanceof Traversable) { |
---|
787 | return in_array($value, iterator_to_array($compare, false), $strict); |
---|
788 | } |
---|
789 | |
---|
790 | return false; |
---|
791 | } |
---|
792 | |
---|
793 | /** |
---|
794 | * Escapes a string. |
---|
795 | * |
---|
796 | * @param Twig_Environment $env A Twig_Environment instance |
---|
797 | * @param string $string The value to be escaped |
---|
798 | * @param string $strategy The escaping strategy |
---|
799 | * @param string $charset The charset |
---|
800 | * @param Boolean $autoescape Whether the function is called by the auto-escaping feature (true) or by the developer (false) |
---|
801 | */ |
---|
802 | function twig_escape_filter(Twig_Environment $env, $string, $strategy = 'html', $charset = null, $autoescape = false) |
---|
803 | { |
---|
804 | if ($autoescape && is_object($string) && $string instanceof Twig_Markup) { |
---|
805 | return $string; |
---|
806 | } |
---|
807 | |
---|
808 | if (!is_string($string) && !(is_object($string) && method_exists($string, '__toString'))) { |
---|
809 | return $string; |
---|
810 | } |
---|
811 | |
---|
812 | if (null === $charset) { |
---|
813 | $charset = $env->getCharset(); |
---|
814 | } |
---|
815 | |
---|
816 | $string = (string) $string; |
---|
817 | |
---|
818 | switch ($strategy) { |
---|
819 | case 'js': |
---|
820 | // escape all non-alphanumeric characters |
---|
821 | // into their \xHH or \uHHHH representations |
---|
822 | if ('UTF-8' != $charset) { |
---|
823 | $string = twig_convert_encoding($string, 'UTF-8', $charset); |
---|
824 | } |
---|
825 | |
---|
826 | if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) { |
---|
827 | throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.'); |
---|
828 | } |
---|
829 | |
---|
830 | $string = preg_replace_callback('#[^a-zA-Z0-9,\._]#Su', '_twig_escape_js_callback', $string); |
---|
831 | |
---|
832 | if ('UTF-8' != $charset) { |
---|
833 | $string = twig_convert_encoding($string, $charset, 'UTF-8'); |
---|
834 | } |
---|
835 | |
---|
836 | return $string; |
---|
837 | |
---|
838 | case 'css': |
---|
839 | if ('UTF-8' != $charset) { |
---|
840 | $string = twig_convert_encoding($string, 'UTF-8', $charset); |
---|
841 | } |
---|
842 | |
---|
843 | if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) { |
---|
844 | throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.'); |
---|
845 | } |
---|
846 | |
---|
847 | $string = preg_replace_callback('#[^a-zA-Z0-9]#Su', '_twig_escape_css_callback', $string); |
---|
848 | |
---|
849 | if ('UTF-8' != $charset) { |
---|
850 | $string = twig_convert_encoding($string, $charset, 'UTF-8'); |
---|
851 | } |
---|
852 | |
---|
853 | return $string; |
---|
854 | |
---|
855 | case 'html_attr': |
---|
856 | if ('UTF-8' != $charset) { |
---|
857 | $string = twig_convert_encoding($string, 'UTF-8', $charset); |
---|
858 | } |
---|
859 | |
---|
860 | if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) { |
---|
861 | throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.'); |
---|
862 | } |
---|
863 | |
---|
864 | $string = preg_replace_callback('#[^a-zA-Z0-9,\.\-_]#Su', '_twig_escape_html_attr_callback', $string); |
---|
865 | |
---|
866 | if ('UTF-8' != $charset) { |
---|
867 | $string = twig_convert_encoding($string, $charset, 'UTF-8'); |
---|
868 | } |
---|
869 | |
---|
870 | return $string; |
---|
871 | |
---|
872 | case 'html': |
---|
873 | // see http://php.net/htmlspecialchars |
---|
874 | |
---|
875 | // Using a static variable to avoid initializing the array |
---|
876 | // each time the function is called. Moving the declaration on the |
---|
877 | // top of the function slow downs other escaping strategies. |
---|
878 | static $htmlspecialcharsCharsets = array( |
---|
879 | 'iso-8859-1' => true, 'iso8859-1' => true, |
---|
880 | 'iso-8859-15' => true, 'iso8859-15' => true, |
---|
881 | 'utf-8' => true, |
---|
882 | 'cp866' => true, 'ibm866' => true, '866' => true, |
---|
883 | 'cp1251' => true, 'windows-1251' => true, 'win-1251' => true, |
---|
884 | '1251' => true, |
---|
885 | 'cp1252' => true, 'windows-1252' => true, '1252' => true, |
---|
886 | 'koi8-r' => true, 'koi8-ru' => true, 'koi8r' => true, |
---|
887 | 'big5' => true, '950' => true, |
---|
888 | 'gb2312' => true, '936' => true, |
---|
889 | 'big5-hkscs' => true, |
---|
890 | 'shift_jis' => true, 'sjis' => true, '932' => true, |
---|
891 | 'euc-jp' => true, 'eucjp' => true, |
---|
892 | 'iso8859-5' => true, 'iso-8859-5' => true, 'macroman' => true, |
---|
893 | ); |
---|
894 | |
---|
895 | if (isset($htmlspecialcharsCharsets[strtolower($charset)])) { |
---|
896 | return htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, $charset); |
---|
897 | } |
---|
898 | |
---|
899 | $string = twig_convert_encoding($string, 'UTF-8', $charset); |
---|
900 | $string = htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); |
---|
901 | |
---|
902 | return twig_convert_encoding($string, $charset, 'UTF-8'); |
---|
903 | |
---|
904 | case 'url': |
---|
905 | if (version_compare(PHP_VERSION, '5.3.0', '<')) { |
---|
906 | return str_replace('%7E', '~', rawurlencode($string)); |
---|
907 | } |
---|
908 | |
---|
909 | return rawurlencode($string); |
---|
910 | |
---|
911 | default: |
---|
912 | throw new Twig_Error_Runtime(sprintf('Invalid escaping strategy "%s" (valid ones: html, js, url, css, and html_attr).', $strategy)); |
---|
913 | } |
---|
914 | } |
---|
915 | |
---|
916 | /* used internally */ |
---|
917 | function twig_escape_filter_is_safe(Twig_Node $filterArgs) |
---|
918 | { |
---|
919 | foreach ($filterArgs as $arg) { |
---|
920 | if ($arg instanceof Twig_Node_Expression_Constant) { |
---|
921 | return array($arg->getAttribute('value')); |
---|
922 | } |
---|
923 | |
---|
924 | return array(); |
---|
925 | } |
---|
926 | |
---|
927 | return array('html'); |
---|
928 | } |
---|
929 | |
---|
930 | if (function_exists('mb_convert_encoding')) { |
---|
931 | function twig_convert_encoding($string, $to, $from) |
---|
932 | { |
---|
933 | return mb_convert_encoding($string, $to, $from); |
---|
934 | } |
---|
935 | } elseif (function_exists('iconv')) { |
---|
936 | function twig_convert_encoding($string, $to, $from) |
---|
937 | { |
---|
938 | return iconv($from, $to, $string); |
---|
939 | } |
---|
940 | } else { |
---|
941 | function twig_convert_encoding($string, $to, $from) |
---|
942 | { |
---|
943 | throw new Twig_Error_Runtime('No suitable convert encoding function (use UTF-8 as your encoding or install the iconv or mbstring extension).'); |
---|
944 | } |
---|
945 | } |
---|
946 | |
---|
947 | function _twig_escape_js_callback($matches) |
---|
948 | { |
---|
949 | $char = $matches[0]; |
---|
950 | |
---|
951 | // \xHH |
---|
952 | if (!isset($char[1])) { |
---|
953 | return '\\x'.strtoupper(substr('00'.bin2hex($char), -2)); |
---|
954 | } |
---|
955 | |
---|
956 | // \uHHHH |
---|
957 | $char = twig_convert_encoding($char, 'UTF-16BE', 'UTF-8'); |
---|
958 | |
---|
959 | return '\\u'.strtoupper(substr('0000'.bin2hex($char), -4)); |
---|
960 | } |
---|
961 | |
---|
962 | function _twig_escape_css_callback($matches) |
---|
963 | { |
---|
964 | $char = $matches[0]; |
---|
965 | |
---|
966 | // \xHH |
---|
967 | if (!isset($char[1])) { |
---|
968 | $hex = ltrim(strtoupper(bin2hex($char)), '0'); |
---|
969 | if (0 === strlen($hex)) { |
---|
970 | $hex = '0'; |
---|
971 | } |
---|
972 | |
---|
973 | return '\\'.$hex.' '; |
---|
974 | } |
---|
975 | |
---|
976 | // \uHHHH |
---|
977 | $char = twig_convert_encoding($char, 'UTF-16BE', 'UTF-8'); |
---|
978 | |
---|
979 | return '\\'.ltrim(strtoupper(bin2hex($char)), '0').' '; |
---|
980 | } |
---|
981 | |
---|
982 | /** |
---|
983 | * This function is adapted from code coming from Zend Framework. |
---|
984 | * |
---|
985 | * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) |
---|
986 | * @license http://framework.zend.com/license/new-bsd New BSD License |
---|
987 | */ |
---|
988 | function _twig_escape_html_attr_callback($matches) |
---|
989 | { |
---|
990 | /* |
---|
991 | * While HTML supports far more named entities, the lowest common denominator |
---|
992 | * has become HTML5's XML Serialisation which is restricted to the those named |
---|
993 | * entities that XML supports. Using HTML entities would result in this error: |
---|
994 | * XML Parsing Error: undefined entity |
---|
995 | */ |
---|
996 | static $entityMap = array( |
---|
997 | 34 => 'quot', /* quotation mark */ |
---|
998 | 38 => 'amp', /* ampersand */ |
---|
999 | 60 => 'lt', /* less-than sign */ |
---|
1000 | 62 => 'gt', /* greater-than sign */ |
---|
1001 | ); |
---|
1002 | |
---|
1003 | $chr = $matches[0]; |
---|
1004 | $ord = ord($chr); |
---|
1005 | |
---|
1006 | /** |
---|
1007 | * The following replaces characters undefined in HTML with the |
---|
1008 | * hex entity for the Unicode replacement character. |
---|
1009 | */ |
---|
1010 | if (($ord <= 0x1f && $chr != "\t" && $chr != "\n" && $chr != "\r") || ($ord >= 0x7f && $ord <= 0x9f)) { |
---|
1011 | return '�'; |
---|
1012 | } |
---|
1013 | |
---|
1014 | /** |
---|
1015 | * Check if the current character to escape has a name entity we should |
---|
1016 | * replace it with while grabbing the hex value of the character. |
---|
1017 | */ |
---|
1018 | if (strlen($chr) == 1) { |
---|
1019 | $hex = strtoupper(substr('00'.bin2hex($chr), -2)); |
---|
1020 | } else { |
---|
1021 | $chr = twig_convert_encoding($chr, 'UTF-16BE', 'UTF-8'); |
---|
1022 | $hex = strtoupper(substr('0000'.bin2hex($chr), -4)); |
---|
1023 | } |
---|
1024 | |
---|
1025 | $int = hexdec($hex); |
---|
1026 | if (array_key_exists($int, $entityMap)) { |
---|
1027 | return sprintf('&%s;', $entityMap[$int]); |
---|
1028 | } |
---|
1029 | |
---|
1030 | /** |
---|
1031 | * Per OWASP recommendations, we'll use hex entities for any other |
---|
1032 | * characters where a named entity does not exist. |
---|
1033 | */ |
---|
1034 | |
---|
1035 | return sprintf('&#x%s;', $hex); |
---|
1036 | } |
---|
1037 | |
---|
1038 | // add multibyte extensions if possible |
---|
1039 | if (function_exists('mb_get_info')) { |
---|
1040 | /** |
---|
1041 | * Returns the length of a variable. |
---|
1042 | * |
---|
1043 | * @param Twig_Environment $env A Twig_Environment instance |
---|
1044 | * @param mixed $thing A variable |
---|
1045 | * |
---|
1046 | * @return integer The length of the value |
---|
1047 | */ |
---|
1048 | function twig_length_filter(Twig_Environment $env, $thing) |
---|
1049 | { |
---|
1050 | return is_scalar($thing) ? mb_strlen($thing, $env->getCharset()) : count($thing); |
---|
1051 | } |
---|
1052 | |
---|
1053 | /** |
---|
1054 | * Converts a string to uppercase. |
---|
1055 | * |
---|
1056 | * @param Twig_Environment $env A Twig_Environment instance |
---|
1057 | * @param string $string A string |
---|
1058 | * |
---|
1059 | * @return string The uppercased string |
---|
1060 | */ |
---|
1061 | function twig_upper_filter(Twig_Environment $env, $string) |
---|
1062 | { |
---|
1063 | if (null !== ($charset = $env->getCharset())) { |
---|
1064 | return mb_strtoupper($string, $charset); |
---|
1065 | } |
---|
1066 | |
---|
1067 | return strtoupper($string); |
---|
1068 | } |
---|
1069 | |
---|
1070 | /** |
---|
1071 | * Converts a string to lowercase. |
---|
1072 | * |
---|
1073 | * @param Twig_Environment $env A Twig_Environment instance |
---|
1074 | * @param string $string A string |
---|
1075 | * |
---|
1076 | * @return string The lowercased string |
---|
1077 | */ |
---|
1078 | function twig_lower_filter(Twig_Environment $env, $string) |
---|
1079 | { |
---|
1080 | if (null !== ($charset = $env->getCharset())) { |
---|
1081 | return mb_strtolower($string, $charset); |
---|
1082 | } |
---|
1083 | |
---|
1084 | return strtolower($string); |
---|
1085 | } |
---|
1086 | |
---|
1087 | /** |
---|
1088 | * Returns a titlecased string. |
---|
1089 | * |
---|
1090 | * @param Twig_Environment $env A Twig_Environment instance |
---|
1091 | * @param string $string A string |
---|
1092 | * |
---|
1093 | * @return string The titlecased string |
---|
1094 | */ |
---|
1095 | function twig_title_string_filter(Twig_Environment $env, $string) |
---|
1096 | { |
---|
1097 | if (null !== ($charset = $env->getCharset())) { |
---|
1098 | return mb_convert_case($string, MB_CASE_TITLE, $charset); |
---|
1099 | } |
---|
1100 | |
---|
1101 | return ucwords(strtolower($string)); |
---|
1102 | } |
---|
1103 | |
---|
1104 | /** |
---|
1105 | * Returns a capitalized string. |
---|
1106 | * |
---|
1107 | * @param Twig_Environment $env A Twig_Environment instance |
---|
1108 | * @param string $string A string |
---|
1109 | * |
---|
1110 | * @return string The capitalized string |
---|
1111 | */ |
---|
1112 | function twig_capitalize_string_filter(Twig_Environment $env, $string) |
---|
1113 | { |
---|
1114 | if (null !== ($charset = $env->getCharset())) { |
---|
1115 | return mb_strtoupper(mb_substr($string, 0, 1, $charset), $charset). |
---|
1116 | mb_strtolower(mb_substr($string, 1, mb_strlen($string, $charset), $charset), $charset); |
---|
1117 | } |
---|
1118 | |
---|
1119 | return ucfirst(strtolower($string)); |
---|
1120 | } |
---|
1121 | } |
---|
1122 | // and byte fallback |
---|
1123 | else { |
---|
1124 | /** |
---|
1125 | * Returns the length of a variable. |
---|
1126 | * |
---|
1127 | * @param Twig_Environment $env A Twig_Environment instance |
---|
1128 | * @param mixed $thing A variable |
---|
1129 | * |
---|
1130 | * @return integer The length of the value |
---|
1131 | */ |
---|
1132 | function twig_length_filter(Twig_Environment $env, $thing) |
---|
1133 | { |
---|
1134 | return is_scalar($thing) ? strlen($thing) : count($thing); |
---|
1135 | } |
---|
1136 | |
---|
1137 | /** |
---|
1138 | * Returns a titlecased string. |
---|
1139 | * |
---|
1140 | * @param Twig_Environment $env A Twig_Environment instance |
---|
1141 | * @param string $string A string |
---|
1142 | * |
---|
1143 | * @return string The titlecased string |
---|
1144 | */ |
---|
1145 | function twig_title_string_filter(Twig_Environment $env, $string) |
---|
1146 | { |
---|
1147 | return ucwords(strtolower($string)); |
---|
1148 | } |
---|
1149 | |
---|
1150 | /** |
---|
1151 | * Returns a capitalized string. |
---|
1152 | * |
---|
1153 | * @param Twig_Environment $env A Twig_Environment instance |
---|
1154 | * @param string $string A string |
---|
1155 | * |
---|
1156 | * @return string The capitalized string |
---|
1157 | */ |
---|
1158 | function twig_capitalize_string_filter(Twig_Environment $env, $string) |
---|
1159 | { |
---|
1160 | return ucfirst(strtolower($string)); |
---|
1161 | } |
---|
1162 | } |
---|
1163 | |
---|
1164 | /* used internally */ |
---|
1165 | function twig_ensure_traversable($seq) |
---|
1166 | { |
---|
1167 | if ($seq instanceof Traversable || is_array($seq)) { |
---|
1168 | return $seq; |
---|
1169 | } |
---|
1170 | |
---|
1171 | return array(); |
---|
1172 | } |
---|
1173 | |
---|
1174 | /** |
---|
1175 | * Checks if a variable is empty. |
---|
1176 | * |
---|
1177 | * <pre> |
---|
1178 | * {# evaluates to true if the foo variable is null, false, or the empty string #} |
---|
1179 | * {% if foo is empty %} |
---|
1180 | * {# ... #} |
---|
1181 | * {% endif %} |
---|
1182 | * </pre> |
---|
1183 | * |
---|
1184 | * @param mixed $value A variable |
---|
1185 | * |
---|
1186 | * @return Boolean true if the value is empty, false otherwise |
---|
1187 | */ |
---|
1188 | function twig_test_empty($value) |
---|
1189 | { |
---|
1190 | if ($value instanceof Countable) { |
---|
1191 | return 0 == count($value); |
---|
1192 | } |
---|
1193 | |
---|
1194 | return false === $value || (empty($value) && '0' != $value); |
---|
1195 | } |
---|
1196 | |
---|
1197 | /** |
---|
1198 | * Checks if a variable is traversable. |
---|
1199 | * |
---|
1200 | * <pre> |
---|
1201 | * {# evaluates to true if the foo variable is an array or a traversable object #} |
---|
1202 | * {% if foo is traversable %} |
---|
1203 | * {# ... #} |
---|
1204 | * {% endif %} |
---|
1205 | * </pre> |
---|
1206 | * |
---|
1207 | * @param mixed $value A variable |
---|
1208 | * |
---|
1209 | * @return Boolean true if the value is traversable |
---|
1210 | */ |
---|
1211 | function twig_test_iterable($value) |
---|
1212 | { |
---|
1213 | return $value instanceof Traversable || is_array($value); |
---|
1214 | } |
---|